A postgraduate student was given the task of predicting the 1H NMR spectrum for compound A.

Q: Which amino acid is the least hydrophobic?

A: Note: You have posted multiple questions. So, we will solve the first one for you. If you want any…

Q: On the diagram above, draw a line across each peptide bond in oligopeptide 3a. Write the…

A: Since you have asked multiple questions, we will solve the first three question for you. If you want…

Q: You have been asked to separate a mixture.  Your mixture is composed of glycine (an amino acid),…

A: A mixture can contain solids, liquids, or gases. The components in a mixture are not chemically…

Q: Now let us look at a real amino acid, alanine. Fill in the chart below for each ionizable group. You…

A: Amino acids are the building block of proteins. Amino acids are consisted of carboxyl group, amine…

Q: Hydrogen bond lonic (electrostatic) interaction Hydrophobic interactions Disulfide bond

A: Chemical bonds are necessary for life because they bind molecules together and generate momentary…

Q: Below is the titration of histidine. Calculate the average charge of histidine at pH 6.50. ÇOON…

A: Hi! Thank you for the question, as per the honor code, we are allowed to answer the first…

Q: You were asked to separate two proteins from one another by means of iso-electric focussing. The pI…

A: The molecules in a mixture are separated by exploiting their chemical or physical differences.  In…

Q: In this sequence: Histidine - Alanine - Aspartic acid - Leucine tetrapeptide (show using your model…

A: A peptide bond is a type of covalent bond that connects the amino acids in a protein chain. It is…

Q: Detergents disrupt hydrophobic interactions by coating hydrophobic molecules with molecules that…

A: Hemoglobin is an oligomeric protein with four polypeptides. The individual polypeptides are joined…

Q: Draw a peptide that includes Phenylalanine, Cysteine, Tyrosine and Tryptophan. Label them by name…

A: Draw a peptide that includes Phenylalanine, Cysteine, Tyrosine and Tryptophan. Label them by name…

Q: Draw a diagram of a peptide bond in the cis and trans configurations. Show the contributing…

A: The amino group (NH2) of one amino acid and the carboxyl group (COOH) of another amino acid can join…

Q: Penicillin G is a natural antibiotic that is useful for treating infections caused by Gram positive…

A: Penicillin G is a narrow-spectrum antibiotic which is used for treating a large variety of…

Q: You are studying a novel amino acid. It has an alpha-amino and an alpha-carboxylic group, and an…

A: The titration curve of an amino acid shows the change in pH as an acid or base is added to the…

Q: Proteins are made from chains of amino acids. The amino acids are joined together by structures…

A: Dipeptide

Q: Consider the structure of the tripeptide below. H H₂N-C-C- 0=6 CH₂ CH₂ C=0 1 NH₂ pH 5: O pH 10: H O…

A: The given peptide has three amino acids joined by the peptide bond. There are three ionizable groups…

Q: what does this suggest.  b) suggest a macromolecule where this modification might occur

A:

Q: The peptide segment shown below is part of a right-handed alpha helix. Please indicate the…

A: Alpha helixes are regular secondary structures. The hydrogen bonding pattern of an alpha helix is,…

Q: None

A: Answer - basic. This amino acid is histidine. It is basic because the side-chain imidazole ring can…

Q: b) It's said that secondary structures form because of intra- and intermolecular hydrogen bonding…

A: Proteins are one of the major 4 biomolecules, these act as building blocks of biological tissues.…

Q: Given a peptide chain that is composed of the following amino acids: (branched chain-- polar…

A: Chromatography is a separation technique by which amino acids dissolved in a mobile phase are…

Q: Would you consider the formation of a peptide bond to be an example of a neutralization reaction?…

A: Introduction : Aminoacids are the building blocks of the proteins. Many aminoacid link with each…

Q: In X-ray crystąllography, the wavelength of an X-ray is - 1.5 Å. This is useful in determining a…

A: X-ray crystallography is a technique used in the determination of three-dimensional atomic…

Q: Five amino acids were subjected to normal phase chromatography, and the folkowing Rf val were…

A: Chromatography is the technique of separation of components of a mixture based on their physical…

Q: what is the sequence of peptide 4?

A: DNA sequencing is a biochemical method for determining the order of the nucleotide bases, adenine,…

Q: Perform a peptide coupling reaction to connect the two amino acids together plus if any other…

A: Detailed explanation:To perform the peptide coupling reaction for connecting the two amino acids,…

Q: what is the sequence of peptide 1?

A: A nonpeptide is the a polypeptide containing nine amino acids linked via peptide bonds. The sequence…

Q: Please calculate and plot the charge on a peptide with the sequence of NEYK over the pH range from 1…

A: Before calculating the charge on the peptide and plotting it, we need to be thorough with the…

Q: A) Identify the structures that would be found in proteins B) identify the structures that…

A: Introduction  Large biomolecules and macromolecules known as proteins are made up of one or more…

Q: A 100 mL of 0.1 M amino acid at pH 1.0, whose pKa for the carboxyl group is less than the pKa of the…

A: The amino acids carry different ionizable groups. The ionic form of the amino acids depends upon the…

Q: Below is the primary structure of a protein. Вс D R H H H || II || E C - N - с — С — N — С — С — N —…

A: Polypeptides are unbranched, linear polymers that are composed of amino acids linked together by…

Q: What are nucleic acids? Why are they important

A: Hello. Since your question has multiple parts, we will solve the first question for you. If you want…

Q: The carbohydrates (CHOs), with a general formula of (CH₂O)n, are rich in hydroxyl groups. This…

A: Carbohydrates are the most abundant of all biomolecules present on the earth. Likewise, they play a…

Q: The enzyme thermolysin cleaves peptide bonds on the C-terminal side of the amino acids lle. Tyr,…

A: Amino acids are monomeric units that form a peptide chain. The amino acids are linked together by a…

Q: A B Amino Acid Lysine Abbreviation 3- Letters Lys 1- Letter K pk₁ -COOH 2.18 pK₂ -NHS* 8.95 PKR R…

A: Amino acids are biomolecules where an alpha carbon is bonded to an amine group , a carboxylic group,…

Q: 1) Find the pH of 0.1 M of the differnet forms histidine species. (See image for equation and pKa…

A: Amino acids are building blocks of the proteins. Alpha carbon of amino acids consist of carboxyl…

Q: What average positive charge of an amino acid side chain with pKa 10.9 at a pH value of 11.9? Answer…

A: Answer :- To calculate the average positive charge of an amino acid side chain with a pKa of 10.9 at…

Q: The pKa of the side chain of histidine is 6.00. What is the percent of protonated histidine at pH…

A: All amino acids contain atleast two ionizable groups- the alpha-amino group and the alpha-carboxylic…

Q: Sketch a titration curve for aspartic acid, andindicate the pKa values of all titratable groups.…

A: Aspartic acid (Asp) is charged polar amino acid (acidic). The side chain of Asp contains -CH2-COOH.…

Q: a. what general category would you place this molecule in of the four categories of biomolecules?…

A: The biomolecules are the basic component of the living organisms that are of different types that…

Q: Choose the best response for each of the blanks in the statement below. When it is part of a…

A: Proteins are biomolecules made up of amino acids, which are joined together through peptide bonds.…

Q: Draw a structural formula for each nucleotide and estimate its net charge at pH 7.4, the pH of blood…

A: Nucleotides are the monomers of nucleic acids, DNA and RNA. A nucleotide is composed of a…

Q: 5' end Adenine 3' end OH Phosphate- deoxyribose packbone o. Guanine Cytosine- 3' end 5' end O This…

A: Deoxyribonucleic acid or DNA is a molecule made up of 2 polynucleotide chains that make up a double…